Upgrade openssl from 1.1.0e to 1.1.1b, with source code. 4.0.78

trunk/3rdparty/openssl-1.1-fit/crypto/evp/bio_md.c

@@ -0,0 +1,233 @@
+/*
+ * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include <stdio.h>
+#include <errno.h>
+#include "internal/cryptlib.h"
+#include <openssl/buffer.h>
+#include <openssl/evp.h>
+#include "internal/evp_int.h"
+#include "evp_locl.h"
+#include "internal/bio.h"
+
+/*
+ * BIO_put and BIO_get both add to the digest, BIO_gets returns the digest
+ */
+
+static int md_write(BIO *h, char const *buf, int num);
+static int md_read(BIO *h, char *buf, int size);
+static int md_gets(BIO *h, char *str, int size);
+static long md_ctrl(BIO *h, int cmd, long arg1, void *arg2);
+static int md_new(BIO *h);
+static int md_free(BIO *data);
+static long md_callback_ctrl(BIO *h, int cmd, BIO_info_cb *fp);
+
+static const BIO_METHOD methods_md = {
+    BIO_TYPE_MD,
+    "message digest",
+    /* TODO: Convert to new style write function */
+    bwrite_conv,
+    md_write,
+    /* TODO: Convert to new style read function */
+    bread_conv,
+    md_read,
+    NULL,                       /* md_puts, */
+    md_gets,
+    md_ctrl,
+    md_new,
+    md_free,
+    md_callback_ctrl,
+};
+
+const BIO_METHOD *BIO_f_md(void)
+{
+    return &methods_md;
+}
+
+static int md_new(BIO *bi)
+{
+    EVP_MD_CTX *ctx;
+
+    ctx = EVP_MD_CTX_new();
+    if (ctx == NULL)
+        return 0;
+
+    BIO_set_init(bi, 1);
+    BIO_set_data(bi, ctx);
+
+    return 1;
+}
+
+static int md_free(BIO *a)
+{
+    if (a == NULL)
+        return 0;
+    EVP_MD_CTX_free(BIO_get_data(a));
+    BIO_set_data(a, NULL);
+    BIO_set_init(a, 0);
+
+    return 1;
+}
+
+static int md_read(BIO *b, char *out, int outl)
+{
+    int ret = 0;
+    EVP_MD_CTX *ctx;
+    BIO *next;
+
+    if (out == NULL)
+        return 0;
+
+    ctx = BIO_get_data(b);
+    next = BIO_next(b);
+
+    if ((ctx == NULL) || (next == NULL))
+        return 0;
+
+    ret = BIO_read(next, out, outl);
+    if (BIO_get_init(b)) {
+        if (ret > 0) {
+            if (EVP_DigestUpdate(ctx, (unsigned char *)out,
+                                 (unsigned int)ret) <= 0)
+                return -1;
+        }
+    }
+    BIO_clear_retry_flags(b);
+    BIO_copy_next_retry(b);
+    return ret;
+}
+
+static int md_write(BIO *b, const char *in, int inl)
+{
+    int ret = 0;
+    EVP_MD_CTX *ctx;
+    BIO *next;
+
+    if ((in == NULL) || (inl <= 0))
+        return 0;
+
+    ctx = BIO_get_data(b);
+    next = BIO_next(b);
+    if ((ctx != NULL) && (next != NULL))
+        ret = BIO_write(next, in, inl);
+
+    if (BIO_get_init(b)) {
+        if (ret > 0) {
+            if (!EVP_DigestUpdate(ctx, (const unsigned char *)in,
+                                  (unsigned int)ret)) {
+                BIO_clear_retry_flags(b);
+                return 0;
+            }
+        }
+    }
+    if (next != NULL) {
+        BIO_clear_retry_flags(b);
+        BIO_copy_next_retry(b);
+    }
+    return ret;
+}
+
+static long md_ctrl(BIO *b, int cmd, long num, void *ptr)
+{
+    EVP_MD_CTX *ctx, *dctx, **pctx;
+    const EVP_MD **ppmd;
+    EVP_MD *md;
+    long ret = 1;
+    BIO *dbio, *next;
+
+
+    ctx = BIO_get_data(b);
+    next = BIO_next(b);
+
+    switch (cmd) {
+    case BIO_CTRL_RESET:
+        if (BIO_get_init(b))
+            ret = EVP_DigestInit_ex(ctx, ctx->digest, NULL);
+        else
+            ret = 0;
+        if (ret > 0)
+            ret = BIO_ctrl(next, cmd, num, ptr);
+        break;
+    case BIO_C_GET_MD:
+        if (BIO_get_init(b)) {
+            ppmd = ptr;
+            *ppmd = ctx->digest;
+        } else
+            ret = 0;
+        break;
+    case BIO_C_GET_MD_CTX:
+        pctx = ptr;
+        *pctx = ctx;
+        BIO_set_init(b, 1);
+        break;
+    case BIO_C_SET_MD_CTX:
+        if (BIO_get_init(b))
+            BIO_set_data(b, ptr);
+        else
+            ret = 0;
+        break;
+    case BIO_C_DO_STATE_MACHINE:
+        BIO_clear_retry_flags(b);
+        ret = BIO_ctrl(next, cmd, num, ptr);
+        BIO_copy_next_retry(b);
+        break;
+
+    case BIO_C_SET_MD:
+        md = ptr;
+        ret = EVP_DigestInit_ex(ctx, md, NULL);
+        if (ret > 0)
+            BIO_set_init(b, 1);
+        break;
+    case BIO_CTRL_DUP:
+        dbio = ptr;
+        dctx = BIO_get_data(dbio);
+        if (!EVP_MD_CTX_copy_ex(dctx, ctx))
+            return 0;
+        BIO_set_init(b, 1);
+        break;
+    default:
+        ret = BIO_ctrl(next, cmd, num, ptr);
+        break;
+    }
+    return ret;
+}
+
+static long md_callback_ctrl(BIO *b, int cmd, BIO_info_cb *fp)
+{
+    long ret = 1;
+    BIO *next;
+
+    next = BIO_next(b);
+
+    if (next == NULL)
+        return 0;
+
+    switch (cmd) {
+    default:
+        ret = BIO_callback_ctrl(next, cmd, fp);
+        break;
+    }
+    return ret;
+}
+
+static int md_gets(BIO *bp, char *buf, int size)
+{
+    EVP_MD_CTX *ctx;
+    unsigned int ret;
+
+    ctx = BIO_get_data(bp);
+
+    if (size < ctx->digest->md_size)
+        return 0;
+
+    if (EVP_DigestFinal_ex(ctx, (unsigned char *)buf, &ret) <= 0)
+        return -1;
+
+    return (int)ret;
+}